摘要
地下矿山开采采空区稳定性一般受多重因素影响,除岩体自身结构和应力外,还受采矿方法、采空区充填情况、岩体赋存条件以及爆破震动等外在因素影响。各种因素复杂多变,相互干扰,构成了采场顶板安全跨度的不确定性。通过对矿山现状采空区情况进行调查、统计和分析,开展矿山采空区稳定性研究工作,采用理论计算和数值模拟分析相结合的方式,评估采空区安全性,为保证矿山深部安全生产提供技术支撑。
The stability of underground mined-out area is generally affected by multiple factors.In addition to the structure and stress of rock mass,there are also external factors such as mining method,filling condition of mined-out area,occurrence condition of rock mass and blasting vibration.All kinds of factors are complicated and changeable and interfere with each other,which constitute the uncertainty of safety span of stope roof.Through the investigation,statistics and analysis of the current situation of the mine goaf,the research on the stability of the mine goaf is carried out,and the combination of theoretical calculation and numerical simulation analysis is adopted to evaluate the safety of the goaf,so as to provide technical support for ensuring the safe production of the deep mine.
作者
张佳男
尹裕
杨少华
高自杰
邓书榕
ZHANG Jianan;YIN Yu;YANG Shaohua;GAO Zijie;DENG Shurong(Kunming Dongchuan Jinshui Mining Co.,Ltd.,Kunming 654100,China;School of Resource Environment and Safety Engineering,University of South China,Hengyang 421001,Hunan,China;Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.,Maanshan 243000,Anhui,China)
出处
《昆明冶金高等专科学校学报》
CAS
2022年第4期21-26,共6页
Journal of Kunming Metallurgy College
基金
湖南省研究生科研创新项目:金属矿山采场围岩成拱作用机理及充填体强度模型研究(CX20200916)。
关键词
数值模拟
采空区
地下开采
采场围岩
numerical simulation
goaf
underground mining
stope surrounding rock
